Ventilator construction



March .26, 1935.

c. KANNEL. VETILATOR CONSTRUCTION 2 Sheets-Sheet 1 Filed AugN. 25, 1952 515.1 r

" (I. lfd/mel c. KANNL 1,995,456

2 Sheets-Sheet 2 Far/1160 v lllllillllllntfnlf) llllllll -l March 26, 1935'.

VENTILATOR CONSTRUCTION Filed Aug. 25, 1952 FIL the same time preventing idust, rain, and insectsfrom passing through. Being made in the form.

Patented 26, 19,35

UNITED STATES PAT-ENT 'OFFICE- vEN'rmA'roa coNs'rapo'rloN Charles Kannel, Luray, Va. Application August z3, iasa'seriax No. 630,156 1o claims. (c1. eis-8s) 'I'he present invention relates to improvements in ventilators of that type which may be used in various places, such as in windowsand in doors, where it is desired to admit air while at of a unit, the invention is capable of being used in dwellings, olce buildings, traveling vehicles,

and elsewhere, but for the purposes of this dis.

closure it is herein illustrated in that form of the device whichis suitable for introduction into a window.

One of the main objects of my invention isto provide a ventilator construction inwhich opposing shutters are so arranged that the air will have to take a tortuous path in passing through lthe frame, the frame and arrangement of the shutters causing the air to impact against pocketing surfaces, whereby dust or rain will be caught, thrown downwardly, and back outwardly while the air passes on into the room.

A further object in view is to provide an adjustable arrangement oi?A shutters which will permit the air passages to .be controlled more vor less as to their area.

It is further an object of my invention to provide a shutter arrangement comprising opposing sets, at least one of such sets being capable of displacement from operative position to enable freer passage of air through the ventilator.

Other and further objects and advantages of the invention will be hereinafter set forth and the novel features thereof dened by the appended claims.'

In the drawings: Fig. 1 is a front elevation of a ventilator unit constructed in accordance with my. invention;

Fig. 2 is a horizontal sectional view on the line 2-2 of Fig. -12

Figs. 3 and 4 are transverse sectional views on the line 3-3 and 4 4, respectively, of Fig. 2;-

Figs. 5 and 6 are fragmentary sectional views showing a modied `form embodying adjustable shutter elements or vanes;

Fig. 'l is a horizontal sectional viewof another form of my invention;

Fig. 8 is -a vertical section of that form shown inFig.7;

Fig. -9 is a horizontal sectional View of a still further modification;

Fig. 10 is afront elevation of that form of construction shown in Fig. 9;

Fig. 11 is a further modified form;

larly in Fig. 5 and disclosing theshutter adjusting mechanism. l Like reference characters designate correspendingA parts in the several gures of the drawshutters, one set being designated 2 and' the 10 shutters of the other set designated 3. It will be noted that these shutters are Vshape in cross section in this form of the device and those of one set being disposed in staggered relation with reference to those of the companion set. That l5 is to sayVthe apices of the shutters of the set designated 3 are disposed opposite the space between the adjacent sides of pairs of shutters in the set 2. This arrangement is quite important because the air current which passes between 20 the shutters 2 hits into the pockets formed by. the diametrically opposed shutters 3 which provide impact surfacesagainst which the dust, rain and insects must impinge. The result of this. arrangement is that particles of dust and rain 25 drop downwardly while the air is lforced to take a reverse direction of movement, again impacting into the pockets formed by the converging shutters 2 of the other set. This causes further impacting of the remaining dust and rain and 30 the inal direction of the air between the spaces ofthe opposed shutters 3 and into the room. Such a tortuous path for the air current insures clean air entering into the room with a much decreased velocity.

. As shown in Figs. 3 and 4, the base of the frame 1 is formed with an inclined deflector plate i which deects the dust and water outwardly through the base opening 5. I desire it to be understood here, that while I have illustrated in 40 the drawings a Vertical arrangement of the shut--A ter members, I do not wish to be limited in any i I prefer to movably mount the set of shutters 3, as by hinging the same at 6, A latch. 'I will hold the shutter plate `in closed or operative position 50 and when it isdesired to allow a ireerpassageof air through the ventilator, asupon a still and ters 3 dropped downwardly, as shown in Fig. 3 to inoperative position. g

. warm day, the latch 'I is unlocked andthe shuty operating screw 12a is journaled in the frame below the extremities or plates of thebars 9 and 10 and has an operating or iinger-piece 12. 'I'he screw has threaded thereon the pin block or nut 11 having the operating or camming pin 11 which passes through the slots 9 and 10 in the bar extremities.

When the thumb knob or finger-piece 12 is rotated the screw 12a is turned causing the block to be shifted along the threaded stem. Impingement of the pin 11 against the sides of the inclined slots 9' and 10' will cause the bars 9 and 10 to be shifted in opposite directions.

Since the bar 9 is connected to all of the left hand sections or side members of the shutters 2 while the other bar 10 is connected to the right hand shutter sections this movement will shift the shutter members in opposite directions to regulate or close the ventilator opening.

Before passing to further modifications of my invention, itis preferred to attach to the outer face of the frame 1 a screen member 13. 'I'his acts as a baille and tends to prevent insects from entering through the ventilator.

Fig. 7 is a modified form of the device in which the shutter members of the respective sets 2' and f 3 are U-shaped in cross section each being staggered in relation to the other and coacting simiiarly to the V-shaped shutter of the form previously described.

Fig. 9 discloses a further modied form in whichpthe shutters are made from a single sheet 0I material bent into substantially Z form to provide V-shaped shutters 3a terminating in rectangular side pieces' of the frame 1a. The material o1' one leg or side of each of these V-shapes is stamped outwardly to provide an opening 14, the material stamped out forming angularly disposed deiiectors 15. This is a simplied form of construction and it also preferably includes a screen member 16. The air in passing through the ventilator necessarily strikes into the V-pockets and in passing through the openings 14 is deflected by the shutter elements 15 against the back faces of the shutters.l 'I'his produces the same double deiiection and impact as described in connection with the iirst form. v

In Fig. 11 is similarly shown another way of bending the shutters 3b, in cross section said shutters being substantially S form, whereby similar results are It will be understood that other slight changes may be made in the details of construction oi the Aventilator unit without departing from the spirit prising a frame, opposing sets of shutter members formed ofl angularly bent material disposed in -said frame, the shutter members of one set overobtained as described with reference to the forms hereinbeiore mentioned.

lapping the shutter members o1' the 'other set so as ,to present a tortuous passageway having opposing pockets, one set of shutters being hingedly mounted in the frame as a unit and movable to and from cooperative relation with respect to the companion set oi.' shutters.

2. A Ventilating unit of the class described comprising a frame, a set of stationary troughshaped shutter members mounted in spaced relation at one side of the frame, a second set of similarly formed shutter members hingedly arranged as a unit at the other side facing and overlapping those of the other set te form tortuous passages, and a screen member attached to the face of the stationary framesover the shutters. f

3. A Ventilating unit of the class described comprising a frame, a set of' stationary troughshaped shutter members mounted in spaced relation at one side of the frame, a second set of similarly formed shutter members arranged at the other side facing and overlapping. those oi the other set to form tortuous passages, the shutter members of one set being composed of pairs of hingedly adjustable side members, and means for simultaneously adjusting said side members toward and away from corresponding sides oi' the shutter members of the opposing set.

4. A ventilator unit of the class described comprising-a frame, a set of angularly arranged shutters disposed at one side of said trame. a second set of angularly formed shutters disposed at the opposite side and facing the angular shutters of the first mentioned set, said second-mentioned set being hingedlymounted as a unit for movement to and from operative position with relation to the mst-mentioned set.

5. A Ventilating unit of the class described comprising a frame having an outwardly and downwardly inclined bottom portion, a set of troughshaped vertically disposed shutter members arranged in the frame in spaced relation to each other, each shutter member having spaced edges and being formed with a dust discharge opening intermediate its edges and adjacent the inclined portion of the frame.

6. In a Ventilating unit of the class described a substantially rectangular frame having an inclined bottom portion, a set of spaced. troughshaped vertical shutter members arranged within the frame -at one side thereof, each of saidv shutter members being cut away adjacent the inclined bottom to provide a dust discharge opening therein, and a second set-of trough-shaped shutter members disposed in the opposite side of the trame and hinged to the bottom portion of the frame to swing out of the frame and away from the rst set of shutter members, the trough portions of said sets being disposed in opposing overlapping relation when positioned within the frame to provide a tortuous air passage.

7. In a Ventilating unit of the class described a substantially rectangular frame having an inclined bottom portion, a set of spaced vtroughshaped vertical shutter members arranged within the frame at one side thereof. each or said shutter members 4being cut away adiacent the inclined bottom to provide a dust discharge opening therein, a second set of trough-shaped'shutter members disposed in the opposite side of the trame and hinged to the bottom portion of the frame to swing out ot the frame and away from the tlrst set of shutter members, the trough portions of said sets being disposed in opposing-overlapping relation whenpositioned within the vframe to provide a tortuous air passage, and a screen disposed across the frame adjacent the iirst mentioned shutter members.

8. In a Ventilating unitof the class described a substantially rectangular frame having an inclined bottom portion, a set of spaced troughshaped vertical shutter members arranged within the frame at one side thereof, each of said shutter members being cut away adjacent the inclined bottom to provide a dust discharge opening therein, a second set of trough-shaped shutter members disposed in the opposite side of the frame and hinged to the bottom portion of the frame to swing out of the frame and away from the rst set of shutter members, the trough portions of said sets being disposed in opposing overlapping relation when positioned within the frame to provide a tortuous air passage, a screen disposed across the frame adjacent the rst mentioned shutter members, and latch means for retaining the second set of shutter members within the frame.

9. In a Ventilating device of the class described comprising a frame, opposing sets of trough shaped shutter members disposed in overlapping relation at opposite sides oi the trame, the shutter "comprising a frame,

members o! one set being xed within each of the trough shaped frames, the shutter members of the other set being hinged to the frame intermediate their free edges,

toward and away from the free edges of the rst mentioned shutter members.

and means for simultaneously adjusting the edges o! said shutter members 10. In a Ventilating device of the class described I opposing sets of troughshaped shutter members disposed in overlapping relation at opposite sides of the frame having longitudinal edges disposed in spaced relation, the

shutter members of one set being xed within the frame, the shutter members of the other set com prising side membershinged to the frame intermediate their longitudinal edges.'l means for simultaneously adjusting said shutter members toward and away from the longitudinal edges of the first mentioned shutter members, said means comprisingv a pair of shutter operating bars, connecting the opposite s'des of the pivoted shutter members, and means for simultaneously moving the bars in opposite directions.

CHARLES KANNEL. 

